Valentyn

VALENTYN SHVEDOV
Lead Mobile Engineer & Software Architect | Cross-Platform Expert
Mob: [open contact info](look above in the "contact info" section) | Email: [open contact info](look above in the "contact info" section) | LinkedIn: [open contact info](look above in the "contact info" section)

EXECUTIVE SUMMARY
Highly skilled Lead Mobile Engineer & Architect with a comprehensive background of 5+ years driving premium
cross-platform application delivery (React Native, Flutter). Expert in building high-performance, real-time multimedia
ecosystems, microservices architectures, and critical infrastructure modules. Adept at establishing technical roadmaps,
enforcing solid development patterns, and leading technical teams through rapid release cycles under high-demand
corporate schedules.

CORE COMPETENCIES & TECHNICAL STACK

Mobile Ecosystem React Native (CLI & Expo), Flutter (Dart), Native iOS/Android Modules, Architecture Design,
State Management (Redux, MobX, Bloc).

Real-Time Systems gRPC Protocol, WebSockets, Audio/Video Streaming (Agora SDK, WebRTC), Low-Latency
Network Engineering.

Backend & Node.js (NestJS), Golang, Microservices Architecture, RESTful API Design, Firebase Suite,
Services SQL/NoSQL Databases.

DevOps & Delivery CI/CD Pipeline Automation (GitHub Actions, Fastlane, EAS), Mobile App Stores Compliance,
Code Signing & Distribution.

PROFESSIONAL EXPERIENCE

React Native Developer (Enterprise App Transformation)
WindSultan — November 2025 – March 2026
• Orchestrated the engineering migration of an extensive web-based system into a singular, cohesive cross-platform
mobile application utilizing React Native Expo.
• Refactored data synchronization paradigms and optimized responsive mobile views, bringing desktop workflows into
a native, high-fidelity handheld UX layout.
• Conducted thorough performance tuning resulting in reduced app launch delays and fluid UI execution profiles.

Senior React Native Consultant & Stability Engineer
Dexis — February 2025 – October 2025
• Served as Technical Consultant across a portfolio of multiple commercial React Native applications facing complex
stability challenges.
• Enforced architectural patterns, eliminated deep memory leaks, and restructured asynchronous codeblocks under
compressed product launch schedules.
• Re-engineered UI rendering patterns, securing product compliance and achieving flawless deployments on the App
Store and Google Play.

Lead Mobile Engineer / Engineering Team Lead
WTT Solutions — February 2024 – February 2025
• Architected and steered the construction of a large-scale event management product (Agoras), managing all client-
side mobile architectures and microservices.
• Integrated Agora SDK providing bulletproof, live multi-party video conferencing, and coupled it with real-time
WebSocket chat infrastructure.
• Built robust financial data security modules, integrated enterprise KYC pipelines, and established core continuous
integration / continuous deployment (CI/CD) automations using Fastlane and GitHub Actions.
 • Directed technical communication with external stakeholders, supervised engineering sprints, and ensured on-time
milestone delivery.

Senior Flutter Developer (Messenger Architecture & Migration)
JoynChat — February 2023 – August 2023
• Designed core communication models for a business-focused mobile messenger utilizing Flutter and Dart.
• Implemented custom low-level contextual interaction libraries and optimized native mobile notification listeners.
• Co-piloted an enterprise-level architectural refactoring that migrated backend systems from Node.js into a high-
throughput Golang environment.

React Native Developer (Mid-Level Positions Summary)
AltRecipe, TheWhyKingz, EvoPlay, Nfinity, Springs, Batimllc — 2021 – 2023
• EvoPlay: Developed prototypes for esports streaming applications with real-time gRPC communications and heavy
media stream rendering.
• TheWhyKingz: Resolved critical performance bugs and encapsulated HTML5 engines smoothly inside native
containers for a large online gaming app.
• AltRecipe & Springs: Crafted mapping integrations, localized delivery routing via Google Maps API, and deployed
transactional subscription logic.

EDUCATION, CREDENTIALS & LANGUAGES
Lviv Polytechnic National University — Master's & Bachelor's Degrees in Micro- and Nanosystem Technologies
(2018 - 2025)
Languages: English (Full Professional), Ukrainian (Native), Russian (Native)